19870808

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{130729}}^1$

素因数の和:130754

約数の個数: 16

約数和(自身を含む): 39219000

約数和(自身を除く): 19348192

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 130729, 261458, 522916, 1045832, 2483851, 4967702, 9935404, 19870808]

約数ペア:

[(1, 19870808), (2, 9935404), (4, 4967702), (8, 2483851), (19, 1045832), (38, 522916), (76, 261458), (152, 130729)]